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hwmon: (ntc_thermistor) Add support for ncpXXwf104

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This patch adds support for the ntc thermistor NCPXXWF104 series.

Cc: Jean Delvare <jdelvare@suse.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Beomho Seo 2015-04-30 13:07:43 +09:00 committed by Guenter Roeck
parent c65b99f046
commit 887ee43477
5 changed files with 52 additions and 4 deletions
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1
Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
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@ -9,6 +9,7 @@ Requires node properties:
"murata,ncp21wb473"
"murata,ncp03wb473"
"murata,ncp15wl333"
"murata,ncp03wf104"
/* Usage of vendor name "ntc" is deprecated */
<DEPRECATED> "ntc,ncp15wb473"

6
Documentation/hwmon/ntc_thermistor
View File

@ -2,8 +2,10 @@ Kernel driver ntc_thermistor
=================
Supported thermistors from Murata:
* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333
Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333'
* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473,
NCP15WL333, NCP03WF104
Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473',
'ncp15wl333', 'ncp03wf104'
Datasheet: Publicly available at Murata
Supported thermistors from EPCOS:

4
drivers/hwmon/Kconfig
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@ -1106,8 +1106,8 @@ config SENSORS_NTC_THERMISTOR
send notifications about the temperature.
Currently, this driver supports
NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333
from Murata and B57330V2103 from EPCOS.
NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333,
and NCP03WF104 from Murata and B57330V2103 from EPCOS.
This driver can also be built as a module. If so, the module
will be called ntc-thermistor.

44
drivers/hwmon/ntc_thermistor.c
View File

@ -53,6 +53,7 @@ static const struct platform_device_id ntc_thermistor_id[] = {
{ "ncp03wb473", TYPE_NCPXXWB473 },
{ "ncp15wl333", TYPE_NCPXXWL333 },
{ "b57330v2103", TYPE_B57330V2103},
{ "ncp03wf104", TYPE_NCPXXWF104 },
{ },
};
@ -135,6 +136,43 @@ static const struct ntc_compensation ncpXXwl333[] = {
{ .temp_c = 125, .ohm = 707 },
};
static const struct ntc_compensation ncpXXwf104[] = {
{ .temp_c = -40, .ohm = 4397119 },
{ .temp_c = -35, .ohm = 3088599 },
{ .temp_c = -30, .ohm = 2197225 },
{ .temp_c = -25, .ohm = 1581881 },
{ .temp_c = -20, .ohm = 1151037 },
{ .temp_c = -15, .ohm = 846579 },
{ .temp_c = -10, .ohm = 628988 },
{ .temp_c = -5, .ohm = 471632 },
{ .temp_c = 0, .ohm = 357012 },
{ .temp_c = 5, .ohm = 272500 },
{ .temp_c = 10, .ohm = 209710 },
{ .temp_c = 15, .ohm = 162651 },
{ .temp_c = 20, .ohm = 127080 },
{ .temp_c = 25, .ohm = 100000 },
{ .temp_c = 30, .ohm = 79222 },
{ .temp_c = 35, .ohm = 63167 },
{ .temp_c = 40, .ohm = 50677 },
{ .temp_c = 45, .ohm = 40904 },
{ .temp_c = 50, .ohm = 33195 },
{ .temp_c = 55, .ohm = 27091 },
{ .temp_c = 60, .ohm = 22224 },
{ .temp_c = 65, .ohm = 18323 },
{ .temp_c = 70, .ohm = 15184 },
{ .temp_c = 75, .ohm = 12635 },
{ .temp_c = 80, .ohm = 10566 },
{ .temp_c = 85, .ohm = 8873 },
{ .temp_c = 90, .ohm = 7481 },
{ .temp_c = 95, .ohm = 6337 },
{ .temp_c = 100, .ohm = 5384 },
{ .temp_c = 105, .ohm = 4594 },
{ .temp_c = 110, .ohm = 3934 },
{ .temp_c = 115, .ohm = 3380 },
{ .temp_c = 120, .ohm = 2916 },
{ .temp_c = 125, .ohm = 2522 },
};
/*
* The following compensation table is from the specification of EPCOS NTC
* Thermistors Datasheet
@ -219,6 +257,8 @@ static const struct of_device_id ntc_match[] = {
.data = &ntc_thermistor_id[4] },
{ .compatible = "epcos,b57330v2103",
.data = &ntc_thermistor_id[5]},
{ .compatible = "murata,ncp03wf104",
.data = &ntc_thermistor_id[6] },
/* Usage of vendor name "ntc" is deprecated */
{ .compatible = "ntc,ncp15wb473",
@ -567,6 +607,10 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
data->comp = b57330v2103;
data->n_comp = ARRAY_SIZE(b57330v2103);
break;
case TYPE_NCPXXWF104:
data->comp = ncpXXwf104;
data->n_comp = ARRAY_SIZE(ncpXXwf104);
break;
default:
dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n",
pdev_id->driver_data, pdev_id->name);

1
include/linux/platform_data/ntc_thermistor.h
View File

@ -27,6 +27,7 @@ enum ntc_thermistor_type {
TYPE_NCPXXWB473,
TYPE_NCPXXWL333,
TYPE_B57330V2103,
TYPE_NCPXXWF104,
};
struct ntc_thermistor_platform_data {